Container snap-on rotatably releasable cap



Jan. 7 1 9 19 26.

- c. HAMMER con'mman sun-on ROTATABLY RELEASABLE CAP Filed Jan. 8, 1925 Batented=-.lan. 19, 1926.

UNITED STATES CHARLES HAMMER, F HOLLIS COURT BOULEVARD, NEW YORK.

COKTAINEB SNAP-ON ROTATLIBLY BELEASAIBLE CAP.

Application filed January T 0. all whom it may concern:

Be it known that -I,' CHARLES HAMMER, a citizen of the United States, residing at Hollis Court Boulevard, in the county of 3 Queens and State of New York, have invented certain new and useful Improvements in Container Snap-On Rota'talil'y Releasable Caps, of which the following is a specification.

This invention relates to sealed receptacles of the glass container variety, the object of the invention being to provide a container with a snap on rotatably releasable cap, thereby providing an improved sealed receptacle in which the cap may be in the first instance either snapped on by hand or be attached by machine and rotatably released and subsequently snapped on by hand.

It is common in this art to rotate caps on and off of containers or to have the caps held by mere friction, but the present improvement has to do with a glass container and cap which can be readily snapped on or machineimpressed on to the container, and when so applied held against being snapped "off but which may be rotated to release it in a quick and easy manner,'so that without such rotation the cap will be thoroughly and efliciently held upon the container without an liabilit of being sna 'ped off the y y P container.

In the drawings accompanying and forniing a part of this specification, Fig. 1 illus trates this improved glass container and cap: Fig. 2 illustrates the to of a glass container; Fig. 3 illustrates t e cap; Fig. 4 illustrates the cap in vreadinessto snapped on; Fig. 5 illustrates the cap rotated in position to be removed; and Fig. 6 illustrates that formof cap on a container in readiness tohave the lugs pressed under the shoulder,

by suitable machinery.

Similar characters of reference indicate corresponding parts in the several views.

Before explaining in detail the present improvement and mode of operation thereof, I desire to have it understood that the invention is not limited to the details of construction and arrangement of parts which are illustrated in the accompanying drawings, since the invention is capable of other embodiments, and that the phraseology which I employ is for the purpose of description and not of limitation. p

This improved sealed receptacle com rises a suitable Container usually of glass s own -"mouth of the container.

done by han ,owing to the flange s, 1925. Serial m. 1,148.

in the form of a bottle 2 having a-rib or shoulder 3 at its mouth rovided in the present form thereof with diametrically opposed recesses-l, the o posed end walls 5 of which are of curved orm. This shoulder is suitably constructed to permit the cap to be snapped on, and is shown provided with a curved outer surface tapering from its base toward the top or mouth of the bottle thereby to gradually spring the lugs of the cap outward as the cap is snapped on. The cap comprises a top 6 having 3. depending shallow preferably corrugated skirt or flange 7 shown having a strengthened or reinforced lower edge shown as a curled, rolled or beaded edge 8 having in the form shown a pair of inwardly pressed lugs 9'formedfrom such curled or beaded edge. This curled or beaded lower edge not only strengthens the skirt and the lugs and prevents the cutting of the hands but it cooperates with the resilient skirtin such way as to enable the proper yielding of thelugs when the cap is yet the snapping ofi snapped on and of the container.

The depending skirt or flange is of resilient or springy material to permit the proper yielding of the lugs over the shoulder of the container when the cap is snarl)1 on. Y

e cap is usuallyprovided with a liner 10 of suitable thickness for sealing the top of the container.

In applying the cap to the container it is by suit-a le pressure, as by hand or otherwise, forced downward, so that the lugs or projections of the cap will, owing to the resilient flange ,and the shape of the shoulder pass over the lip, rib orshoulder at the In other words, the cap is sna ped on and this maybe readily having the pzoper resiliency, althou h 0 course it can one by machinery if esired. en snapped on in the proper manner the lugs lock or grip under the shoulder of the container and hold so tightly that the cap cannot besn'apped off by hand. so that it is merely necessary to rotate it by han until the lugs register with the reoeses the shoulder of the container, whereupon it can be readily removed. It can be than reused rotatably releasable cap which is under the shoulder or rib of the bottle, the

subsequent removal and use of the capehowever, being similar to that just descri d.

Thus I am able to provide a sna 4?;

e against premature removal, not by mere friction but by the locking action of the inwardly extending lugs, of the cap under the shoulder of the container, but which can be readily rotated b hand for removal.

I am entirely amiliar with the fact that containers are provided with recessed shoulders or lips at the mouth thereof and that caps are provided with lugs, but in all these structures of which I am aware the cap has to be rotated into position b first registering with the recesses in the 'p or shoulder of the container and then turned to engage under the shoulder.

To first register the lugs with the recesses requires too much time when it is remembered that millions of containers are sealed per day, whereas by the present improvement the cap can be quickly and readily snapped on at any point around the shoulder except at the recessed portions, thus very materially saving timewand labor in the packaging of millions of containers per day and without any risk of prematurely knocking ofiz' of the ca Moreover they are more sufiiciently hel "on to the contain-V er since they are held in position not only by the gripping or locking action of the lugs under the shoulder but also by the spring action of the flange or skirt. The rotation of the cap on the old style also has other disadvantages among which is the tendency of the lugs of the cap when first rotated on and be ore 'it has a chance to accommodate itself to the container to scratch the underside of the shoulder, which not infrequently causes it to chip or break off, especially when the container is made of brittle glass as is sometimes the case. But by means of the particular formation of cap and container in the resent improvement in which the cap' an e is of s r'ingy material, I am able to quic ly snap the cap on by machine or by hand and yet hold it efliciently onto the container against premature removal, and then release it by rotating it backward, or ineither direction as a matter of fact, to have the locking projections or In re 'ster with the recesses in the bottle s oul er, and thereby permit easy and quick removal of the cap. Thus the housewife may readily snap on the cap and effectively seal the container, and as readily remove it by rotating it. And this is true even when the cap 1s in the form shown in Fi 6, in which the lugs are impressed un er the shoulder in the first instance, for when the housewife receives it and removes the cap she may thereafter snap it on with the same facilit as the cap may be snapped on by preformmg the lugs and so continuously reuse the cap as often as desired, and I know of no form of cap which canbe either machine-impressed on to the container or snapped on by hand and then subsequently snapped on under the shoulder of that container by hand and therefore I believe that I have rovided the first hand snap-on rotatabl re easable cap, and which is locked or hel on a ainst premature removal by the combinef action of the lugs and the shoulder instead of by mere friction as has been common in snapon ca s.

It is to be understood that by describing in detail herein any particular form, structure or arrangement, it is not intended to limit the invention beyond the terms of the several claims or the requirements of the prior art.

Having thus ex lained the nature of my said invention an described a way of constructing and using the same, althou h without attem ting to set forth all of t 0 forms in which it may be made, or all of the modes of its use, I claim:

1. A metal ca adapted for use with a container neck aving a shoulder and a recess therein comprising a to having a depending resilient skirt provi ed with an inwardly extending locking lug, the skirt and lug being so proportioned with respect to the container shoulder and recess as to permit the cap to be readily snapped on over the shoulder of the container with the lug locking under such shoulder whereby it cannot be normally freel snapped off, and releasable by rotating said cap to bring its lockinglug into register with said recess in the container shoulder.

2. A metal cap adapted for use with a container neck having a shoulder and a pair ofdiametrically opposed recesses therein and comprising a top having a depending corrugated resllient skirt provided with 9. rolled, curled or strengthened lower edge having formed therefrom diametrically o posed inwardly extending locking lu s, t e skirt and lugs being so proportioned with respect to the container shoulder and recesses as to permit the ca to be readily snapped on over the shoul er of the container with the lugs locking under such shoulder whereby it cannot be normally freely snapped ofi and releasable by rotatto bring its locking lugs into register wit shoulder.

3. A sealed receptacle comprisin a container having an inwardly curve or tapered shoulder or li at the mouth thereof provided with a pa1r of diametrically op- 6 posed recesses, and a metal cap comprising a to having a depending resilient skirt provided with a strengthened or reinforced lower edge having formed therefrom a pair .of diametrically opposed inwardly extend- 10 ing locking lugs, the resiliency and size of the skirt being such that the cap can be container to have its lugs grip under such shoulder and prevent the normal free snapping ofi of the cap, said cap bein releasable by rotating it to bring its locking lugs into register with the recesses in the container shoulder.

Signed at Brooklyn, New York, this 30th day of December, 1924.

CHARLES HAMMER.

. readily snapped on over the shoulder of the Y 

